Table 1 All-cause in-hospital mortality in patients with COPD who required emergency hospitalization

Age (yr)

<0.001

40–49

2,055

71

3.5

50–59

6,241

418

6.7

60–69

25,359

2,241

8.8

70–79

57,127

7,137

12.5

80–89

68,092

11,144

16.4

90–99

13,511

2,541

18.8

>100

322

62

19.3

Sex

<0.001

Male

136,632

19,858

14.5

Female

36,075

3,756

10.4

BMI

<0.001

<18.5

55,376

9,399

17

18.5–22.9

61,183

6,310

10.3

23.0–24.9

16,190

1,275

7.9

25.0–29.9

12,970

920

7.1

>30.0

2,184

148

6.8

Dyspnea grade

<0.001

I

9,361

299

3.2

II

13,656

524

3.8

III

14,625

793

5.4

IV

28,156

2,185

7.8

V

34,890

7,873

22.6

Unspecified

17,702

5,011

28.3

Consciousness level

<0.001

Alert

141,110

15,125

10.7

Dull

19,303

3,841

19.9

Somnolence

4,763

1,450

30.4

Coma

4,370

2,344

53.6

ADL score by Barthel Index

<0.001

100

45,488

2,534

5.6

75–95

15,729

1,051

6.7

50–70

22,034

2,144

9.7

25–45

14,822

2,021

13.6

0–20

43,791

11,249

25.7

Pneumonia caused by microbes

53,204

9,432

15.1

<0.001

Aspiration pneumonia

12,650

4,286

25.3

<0.001

Interstitial pneumonitis

8,791

2,862

24.6

<0.001

Pulmonary embolism

1,050

216

17.1

<0.001

Respiratory failure

51,532

11,093

17.7

<0.001

Lung cancer

13,930

4,448

24.2

<0.001

Heart failure

32,748

9,276

16.1

<0.001

Cerebrovascular diseases

7,504

1,394

15.7

<0.001

Liver cirrhosis

1,028

232

18.4

<0.001

Chronic renal failure

4,343

965

18.2

<0.001